/Engine/Source/Runtime/Engine/Public/SkeletalRenderPublic.h
Enable blend weight rendering in the editor
virtual void EnableOverlayRendering ( bool bEnabled, const [TArray](API\Runtime\Core\Containers\TArray)< int32 > * InBonesOfInterest, const [TArray](API\Runtime\Core\Containers\TArray)< [UMorphTarget](API\Runtime\Engine\Animation\UMorphTarget) * > * MorphTargetOfInterest )